Improvement in rotary disintegrators



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Letters Patent No; 108,692, dateaocaber 25,1870.

-.Nov

IMPROVEMENT IN ROTARY DISINTEGRATQRS.

The Schedule referred to in these Letters Patent and making' part of the same.

Toall whom it may concern Be it known that I, HENRY DUosH, of Baltimore in the county of Baltimore and State 'of Maryland, have invented an Improvement in Rotary Disintegrators; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had lo the accompanying drawing making part ot' this specification, in which- -Figure l is a sectional view of a rotary disintegrator having my improvement applied to it.

Figure 2 is a transverse section taken in a vertical l plane through the disintegrator a little on one side of the center thereof.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to an improvement on ro-l tary disintegrators which are designed for pulverzing bones, phosphates, and other substances used for fertlizers and other purposes, and which consists of a number of concentric circles of bars, rotating in opporite directions to one another, and with great velocity.

The object of my invention is to improve machines of this kind by applying 'cleavers to the sides of the rotary cylinders, in the spacesbetween thelattcr and the case which incloses them, thereby lpreventing the accumulation of thev reduced materialin said spaces, and the consequent clogging of the machine, as will be hereinafter explained.

To enable others skilled in .the art to understand my invention I will describe its construction and operation.

In the accompanying drawing- A represents a stron frame which is adantedto C l l Vsupport and partially'contain a series of rotary disintegrators and the devices for drivingthe same.

rIhe disintegrators consist of a number of bars, a e

f a', arranged in circles concentric'to a shaft, J andl rotating in opposite directions.

The bars a f are applied to heads D D F, which arc connected to a sleeve, O, surrounding shaft J, and rotated in the direction indicated by the arrowx in tig: 1.

Ihe bars e and a are applied to headsE and F', which are connected to the shaft J, and rotated in thedirection indicated by the arrow 21; in tig. 1.

'Within the concentric circle of bars a is a knife or breaker, N, which is adjustably secured to the frame A in a rigid position, so that the material when first fed into the machine will be forcibly brought against said breaker and crushed.

On the sleeve O is a pulley, S, which, by means of. a

crossed belt passed around aspulley on shaft, gives toj this sleeve a rotary motion in the direction of arrow agg another pulley on shaftG communicates rotary motion' to the s haft J, in the direction indicated by arrow x', by means of a belt which is passed around pulley S', vand which is not crossed.l

The semicircular case B incloses the disintegrators and prevents the material being reduced from'ying off.

The inclined planes It It conduct the reduced material down to elevators, which convey it to screens that separate the fine grains from the coarser'ones.

The 'machine which I have above described is liable to one objection, to wit: while reducing moist material it accumulates between the ends of the disintegrators and the case B and frame A, so as to become compacted and so solid that, finally, the machine will stop, and the attendants have to. remove the case B and knock out the packed material,

This diiicnlty is experienced in working the machines more .particularly in damp weather, while reducing some of the super-phosphates, which deliquesce and become very moist and adherent. l

'lo remedy this objection, I apply to the ends or sides of the disintegrators blades P I), which will operate as clearers, and prevent anyaccum ulation in the spaces between the ends ofthe disintegrators and the frame A' and case B, of the material which is being ground.

These c learersP are secured fast to the headsE and D', and may extend out beyond the circumference of the heads I) D', they maybe curved, as shown in figs. l

and 3, and they a're preferably made of steel on account IVhat I claim as new, and desire to secure by .liet- In the disintegrating-mill, such as described, the arrangement of clearers P, between the easing B and cylinder-head or heads D D', substantially as and for the.

purpose described.

HENRY Doesn,

Witnesses:

J A s. R. CLARIDGE. A. L. Gerry. 

